Patent · US Expired

Fuel cell

US6630269B1 · kind B1 · utility

1Cited by

4References

10Claims

0Family size

Assignee

Firma Carl Freudenberg · DE

Inventors

Thomas Barth · Darmstadt, DE
Klaus P. Kaspar · Tutzing, DE
Birgit Severich · Viernheim, DE

Key dates

Filing date	Dec 29, 2000
Grant date	Oct 7, 2003
Priority date	—
Expiry date	Dec 29, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A fuel cell, comprising a housing, at least one first proton-conducting layer covered by catalyst layers on both sides, gas-permeable electrodes on the catalyst layers and second layers arranged on both sides of the first layers, whereby said second layers take the form of electro-conductive plates that are located in closely adjacent electro-conductive contact with the electrodes, define gas conducting channels in conjunction with the electrodes and one layer touches the other layer by means of a substantially planar surface. The electrodes are made of at least one layer of electro-conductive polymer fibers that is intersected by flow channels running parallel to the surface thereof in at least one direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.